https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7107

diff --git a/coders/heic.c b/coders/heic.c
index 593251ca72bf7d862f90de1e0d13addba955fa97..79262f311ca2bb877c421cd4da496ac8cbf3309c 100644 (file)
--- a/coders/heic.c
+++ b/coders/heic.c
@@ -488,7 +488,7 @@ static MagickBooleanType ParseInfeAtom(Image *image, DataBuffer *db,
   /*
      item indicies starts from 1
   */
-  if (id > (ssize_t) ctx->idsCount) {
+  if (id >= (ssize_t) ctx->idsCount) {
     ThrowAndReturn("item id is incorrect");
   }